soft - spat
- soft attenuation
- soft image
- soft limiting
- soft mode
- soft self-excitation
- soft-constrained canceller
- software
- software architecture
- software compatibility
- software configuration
- software restriction
- software simulation
- software-controlled switch
- softwere engineer
- solar array
- solar battery
- solar battery cell
- solar battery orientation
- solar battery power
- solar battery protection from radiation
- solar battery supply
- solar battery surface
- solar cell
- solar noise
- solar panel
- solar photocell
- solar power plant
- solar radiation
- solar radiation flux
- solar radiation protection
- solar-powered satellite
- solder joint
- solder the wire to the contact
- solid angle
- solid dielectric capacitor
- solid hydrometeors
- solid state laser
- solid-fuel jet-engine
- solid-state amplifier
- solid-state component
